Pürblack's Peptides Achieve Prestigious NSF Certified for Sport® Approval

Third-Party Testing Validates Pürblack's Peptides as Safe and Effective for Competitive Athletes

SAN DIEGO,  Aug. 18, 2025 /PRNewswire/ -- Pürblack, a supplement company widely recognized for providing the purest shilajit and high-quality peptides, is proud to announce that two of its products, Muscle+ and Joint+, have achieved NSF Certified for Sport® approval.

NSF Certified for Sport® is the only independent third-party certification program recognized by the United States Anti-Doping Agency, Major League Baseball, the National Hockey League, and the Canadian Football League. It is also recommended by the NFL, NBA, PGA, LPGA, CCES, CPSDA, iNADO, Ironman, NASCAR, and other prominent organizations.

Achieving this certification required rigorous evaluation, including:

• Good Manufacturing Practice (GMP) Certification: Ensuring that Pürblack's peptides are produced in a facility that meets stringent federal regulations for supplements.
• Contents Tested & Certified Certification: Verifying that the product is free from unsafe levels of contaminants, including heavy metals, pesticides, and residual solvents.
• Banned Substance Testing: Screening for 290 banned substances, including anabolic agents, stimulants, diuretics, SARMs, and growth hormone-releasing peptides.

"For high-performing athletes, the ability to use a product that is effective and certified safe is essential," said Nodari Rizun, CEO and Founder of Pürblack. "Pürblack's NSF Certified for Sport® designation means that athletes can trust our Muscle+ and Joint+ to deliver performance-boosting results, without risking their health or career. With these peptides, elite athletes are opting for a solution that is not only legal, but also grounded in cutting-edge science, making it a key part of their training regimen."

Formerly known as Pepts ReMuscle, Pürblack's Muscle+ enhances athletic performance, endurance, muscle health, and regeneration while supporting strength, flexibility, metabolism, and heart muscle function.

Formerly known as Pepts ReJoint, Pürblack's Joint+ supports cartilage and bone health by promoting rapid cell synthesis, reducing inflammation, enhancing function by up to 30%, and serving as the first targeted anti-aging supplement for joints.

With this certification, Pürblack further solidifies its position as a leader in innovative sports nutrition, offering athletes a safe and effective way to enhance performance.

About Pürblack

Pürblack is a leader in advanced natural supplementation, dedicated to developing innovative, science-backed shilajit and peptides that enhance performance, recovery, and well-being. Renowned for its commitment to purity and efficacy, Pürblack continues to redefine excellence in sports nutrition and wellness. For more information, visit https://purblack.com/.

SOURCE Pürblack